Analog Devices AD7714AN-5

Single ADC Delta-Sigma 1ksps 24-bit Serial 24-Pin PDIP Tube

5-CH 24-BIT DELTA-SIGMA ADC SERIAL ACCESS PDIP24

IC,A/D CONVERTER,AD7714AN-5, 24-BIT,5V,DIP-24,1-2.5MHZ,6-CH

Bipolar Unipolar DUAL Not Qualified External Analog to Digital Converter 7pF -40C~85C 1V 7mW

IC, ADC, 24BIT, 1KSPS, DIP-24; Resolutio; IC, ADC, 24BIT, 1KSPS, DIP-24; Resolution (Bits):24bit; Sampling Rate:1kSPS; Input Channel Type:Differential; Data Interface:Serial, SPI; Supply Voltage Range:4.75V to 5.25V; Supply Current:1.1mA; Digital IC Case Style:DIP

The AD7714 is a complete analog front end for low-frequency measurement applications. The device accepts low level signals directly from a transducer and outputs a serial digital word. It employs a sigma-delta conversion technique to realize up to 24 bits of no missing codes performance. The input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via the on-chip control register allowing adjustment of the filter cutoff and settling time. The part features three differential analog inputs (which can also be configured as five pseudo-differential analog inputs) as well as a differential reference input. The AD7714 thus performs all signal conditioning and conversion for a system consisting of up to five channels. A new Y grade has recently been added to the existing range. Compared to the A grades this new grade has an extended operating temperature range, schmitt trigger inputs on SCLK and DIN, tighter linearity specifications, lower power consumption and is available in a smaller package. The AD7714 is ideal for use in smart microcontroller- or DSP-based systems. It features a serial interface that can be configured for three-wire operation. Gain settings, signal polarity and channel selection can be configured in software using the serial port. The AD7714 provides self-calibration, system calibration and background calibration options and also allows the user to read and write the on-chip calibration registers. CMOS construction ensures very low power dissipation, and the power-down mode reduces the standby power consumption to 15 µW typical at 3 V. Minimum operating voltage for the A grades is 3 V and 2.7 V for the Y grades. The A grades are available in a 24-pin, 0.3 inch-wide, plastic dual-in-line package (DIP); a 24 lead small outline (SOIC) package and a 28-lead shrink small outline package (SSOP). The new Y grade is available in a 24-pin, 0.3 inch-wide, plastic dual-in-line package (DIP); a 24 lead small outline (SOIC) package and a 24-lead Thin Shrink Small Outline Package (TSSOP).